Paper-made binder, and manufacturing method and manufacturing apparatus therefor

Abstract

Particularly, proposed is a manufacturing method for a paper-made binding comb. The manufacturing method includes: providing a combined roll paper in which an inner roll paper and an outer roll paper are combined at a low-temperature by a low-temperature-sensitive molding material therebetween, the inner roll paper and the outer roll paper, each having a first side surface coated with a high-temperature-sensitive bonding material; slitting the combined roll paper at a predetermined width, and cutting the slitted roll paper such that the slitted roll paper has a comb part and a comb-connecting part, thereby forming a flat comb-shaped paper-binding piece; raising a temperature to the low-temperature such that only the low-temperature-sensitive molding material is melted; and transferring the flat comb-shaped paper-binding piece to a molding apparatus and molding the flat comb-shaped paper-binding piece into a cylindrical shape.

The invention claimed is: 
     
         1 . A manufacturing method for a paper-made binding comb, the manufacturing method comprising:
 providing a combined roll paper in which an inner roll paper and an outer roll paper are combined at a low-temperature by means of a low-temperature-sensitive molding material therebetween, the inner roll paper and the outer roll paper, each having a first side surface coated with a high-temperature-sensitive bonding material, and having uncoated other surfaces positioned to face each other,   slitting the combined roll paper at a predetermined width, and cutting the slitted roll paper such that the slitted roll paper has a comb part and a comb-connecting part, thereby forming a flat comb-shaped paper-binding piece;   raising a temperature to the low-temperature on a heating plate or a heating zone such that only the low-temperature-sensitive molding material in the flat comb-shaped paper-binding piece is melted; and   transferring, to a molding apparatus by a transferring mechanism, the flat comb-shaped paper-binding piece in which only the low-temperature-sensitive molding material is heated to the low-temperature, and molding the flat comb-shaped paper-binding piece into a cylindrical shape by means of the molding apparatus such that a tip end of the comb part of the flat comb-shaped paper-binding piece corresponds to and faces the comb-connecting part,   wherein the high-temperature-sensitive bonding material has a melting point at least 10 degrees Celsius higher than a melting point of the low-temperature-sensitive molding material so that the high-temperature-sensitive bonding material is not affected when the combining by the low-temperature and the molding of the cylindrical shape by the raising the temperature to the low-temperature are performed, the low-temperature-sensitive molding material has a function of combining the inner roll paper and the outer roll paper with each other by the raising the temperature to the low-temperature and has a function of molding the flat comb-shaped paper-binding piece into the cylindrical shape, and the high-temperature-sensitive bonding material has a function of bonding a tip end part of the flat comb-shaped paper-binding piece to the comb-connecting part by raising the temperature to a high-temperature when the high-temperature-sensitive bonding material is later inserted and bound into a paper product that is perforated.   
     
     
         2 . The manufacturing method of  claim 1 , wherein the inner roll paper and the outer roll paper are combined with each other by melting of the low-temperature-sensitive molding material while the inner roll paper and the outer roll paper pass through a low-temperature pressing roller. 
     
     
         3 . The manufacturing method of  claim 1 , wherein the high-temperature-sensitive bonding material has a melting point at least 30 degrees Celsius higher than the melting point of the low-temperature-sensitive molding material. 
     
     
         4 . The manufacturing method of  claim 1 , wherein the molding apparatus comprises an upper mold operated in a downward direction and brought into contact with an upper portion of an inner mold and a lower mold operated in an upward direction and brought into contact with a lower portion of the inner mold, and the upper mold and the lower mold are configured to be operated sequentially without retransferring in a process of molding and are configured to mold the flat comb-shaped paper-binding piece mounted on the inner mold into the cylindrical shape. 
     
     
         5 . The manufacturing method of  claim 4 , wherein lower mold comprises a first lower mold and a second lower mold that are operated independently, and the first lower mold and the second lower mold are configured to be operated sequentially and separately. 
     
     
         6 . The manufacturing method of  claim 1 , wherein the molding apparatus comprises an upper mold operated in a downward direction and brought into contact with an upper portion of an inner mold, a side mold operated in a side direction and brought into contact with a side surface of the inner mold, and a lower mold operated in an upward direction and brought into contact with a lower portion of the inner mold, and the upper mold, the side mold, and the lower mold are configured to be operated sequentially without retransferring in a process of molding and are configured to mold the flat comb-shaped paper-binding piece mounted on the inner mold into the cylindrical shape. 
     
     
         7 . The manufacturing method of  claim 4 , wherein a cooling mechanism for cooling at least one of the inner mold, the upper mold, and the lower mold is further provided inside or outside each mold, so that cooling is performed simultaneously with the molding by the molding apparatus without a separate retransferring. 
     
     
         8 . The manufacturing method of  claim 4 , wherein, as the upper mold is moved in the downward direction toward the inner mold, a support rod mounted such that the support rod partially protrudes from a lower end of the upper mold pushes and supports the flat comb-shaped paper-binding piece seated on the inner mold. 
     
     
         9 . The manufacturing method  claim 6 , wherein, as the upper mold is moved in the downward direction toward the inner mold, a support rod mounted such that the support rod partially protrudes from a lower end of the upper mold pushes and supports the flat comb-shaped paper-binding piece seated on the inner mold. 
     
     
         10 . The manufacturing method of  claim 1 , wherein an additional middle roll paper and the low-temperature-sensitive molding material on each of both side surfaces of the additional middle roll paper are capable of being sequentially stacked between the outer roll paper and the inner roll paper. 
     
     
         11 . The manufacturing method of  claim 1 , wherein, when the molding into the cylindrical shape is performed by the molding apparatus such that the tip end of the comb part corresponds to and faces the comb-connecting part, a linear part is additionally molded on an opposite side dorsal portion of the tip end of the comb part and the comb-connecting part which are protrudingly spaced apart from each other and which face each other. 
     
     
         12 . The manufacturing method of  claim 11 , wherein a long groove recessed inwardly toward a portion that is splayed is additionally molded on a center of the linear part. 
     
     
         13 . A system for a paper-made binding comb, the system comprising:
 a combined roll paper generating part providing a combined roll paper in which an inner roll paper and an outer roll paper are combined at a low-temperature by means of a low-temperature-sensitive molding material therebetween, the inner roll paper and the outer roll paper, each having a first side surface coated with a high-temperature-sensitive bonding material, and having uncoated other surfaces positioned to face each other;   a low-temperature pressing roller part configured to combine the inner roll paper and the outer roll paper with each other by melting the low-temperature-sensitive molding material by raising a temperature to the low-temperature and by pressing;   a slitting part configured to slit the combined roll paper at a predetermined width;   a cutting part configured to cut the slitted combined roll such that the slitted combined roll has a comb part and a comb-connecting part, thereby forming a flat comb-shaped paper-binding piece;   a low-temperature raising part configured to raise a temperature to the low-temperature on a heating plate or a heating zone such that only the low-temperature-sensitive molding material in the flat comb-shaped paper-binding piece is melted;   a transferring part configured to transfer the flat comb-shaped paper-binding piece in which only the low-temperature-sensitive molding material is heated to the low-temperature to a molding apparatus; and   a molding part configured to mold the flat comb-shaped paper-binding piece into a cylindrical shape such that a tip end of the comb part of the flat comb-shaped paper-binding piece corresponds to and faces the comb-connecting part,   wherein the high-temperature-sensitive bonding material has a melting point at least 10 degrees Celsius higher than a melting point of the low-temperature-sensitive molding material so that the high-temperature-sensitive bonding material is not affected when the combining by the low-temperature and the molding of the cylindrical shape by the raising the temperature to the low-temperature are performed, the low-temperature-sensitive molding material has a function of combining the inner roll paper and the outer roll paper with each other by the raising the temperature to the low-temperature and has a function of molding the flat comb-shaped paper-binding piece into the cylindrical shape, and the high-temperature-sensitive bonding material has a function of bonding a tip end part of the flat comb-shaped paper-binding piece to the comb-connecting part by raising the temperature to a high-temperature when the high-temperature-sensitive bonding material is later inserted and bound into a paper product that is perforated.   
     
     
         14 . The system of  claim 13 , wherein the flat comb-shaped paper-binding piece is molded into the cylindrical shape by the molding part, the cylindrical shape having the tip end of the comb part and the comb-connecting part which are protrudingly spaced apart from each other and which correspond to and face each other, and
 the flat comb-shaped paper-binding piece further comprises a binding part configured such that the tip end of the comb part and the comb-connecting part are bonded to each other by pressing the tip end of the comb part such that the tip end of the comb part is brought into contact with the comb-connecting part while the perforated paper product is inserted into the tip end of the comb part and by the high-temperature-sensitive bonding material without using a separate adhesive, the high-temperature-sensitive bonding material being melted by raising the temperature to the high-temperature.   
     
     
         15 . The system of  claim 13 , wherein the high-temperature-sensitive bonding material has a melting point at least 30 degrees Celsius higher than the melting point of the low-temperature-sensitive molding material. 
     
     
         16 . The system of  claim 13 , wherein the molding part comprises an upper mold operated in a downward direction and brought into contact with an upper portion of an inner mold and a lower mold operated in an upward direction and brought into contact with a lower portion of the inner mold, and the upper mold and the lower mold are configured to be operated sequentially without retransferring in a process of molding and are configured to mold the flat comb-shaped paper-binding piece mounted on the inner mold into the cylindrical shape. 
     
     
         17 . The system of  claim 16 , wherein lower mold comprises a first lower mold and a second lower mold that are operated independently, and the first lower mold and the second lower mold are configured to be operated sequentially and separately. 
     
     
         18 . The system of  claim 13 , wherein the molding part comprises an upper mold operated in a downward direction and brought into contact with an upper portion of an inner mold, a side mold operated in a side direction and brought into contact with a side surface of the inner mold, and a lower mold operated in an upward direction and brought into contact with a lower portion of the inner mold, and the upper mold, the side mold, and the lower mold are configured to be operated sequentially without retransferring in a process of molding and are configured to mold the flat comb-shaped paper-binding piece mounted on the inner mold into the cylindrical shape. 
     
     
         19 . The system of  claim 16 , wherein a cooling mechanism for cooling at least one of the inner mold, the upper mold, and the lower mold is further provided inside or outside each mold, so that cooling is performed simultaneously with the molding by the molding apparatus without a separate retransferring. 
     
     
         20 . A paper-made binding comb manufactured by the manufacturing method of  claim 1 .